A styled horizontal bar chart displays population figures for ten countries from a UN population prospects dataset. Rendered as an SVG in React, the chart uses `d3.scaleBand` for the categorical y-axis and `d3.scaleLinear` for the quantitative x-axis. Headers, tick marks, and hover tooltips are drawn with React components. The title and axis labels use the Poppins font, while CSS styles define the chart's color scheme.